SERS spectra of Cytosine tested in 3 different concentrations and compared to pure material spectra.

SERS substrate used: Randa;

About the analyte: Cytosine is one of the 5 main nitrogenous bases used in storing and transporting genetic information within a cell. It is a pyrimidine derivative, with a heterocyclic aromatic ring and two substituents attached - an amine group at position 4 and a keto group at position 2.

Sampling method: immersion; SERS substrates we immeresed into water solutions of Adenine for ~12 hours and rinsed with deionized water afterwards.